3993732 has 24 divisors (see below), whose sum is σ = 10354400. Its totient is φ = 1331208.

The previous prime is 3993721. The next prime is 3993733. The reversal of 3993732 is 2373993.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (3993733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18382 + ... + 18597.

Almost surely, 2^3993732 is an apocalyptic number.

It is an amenable number.

3993732 is an abundant number, since it is smaller than the sum of its proper divisors (6360668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3993732 is a wasteful number, since it uses less digits than its factorization.

3993732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36992 (or 36984 counting only the distinct ones).

The product of its digits is 30618, while the sum is 36.

The square root of 3993732 is about 1998.4323856463. The cubic root of 3993732 is about 158.6571466014.

The spelling of 3993732 in words is "three million, nine hundred ninety-three thousand, seven hundred thirty-two".